<?php

/**
 * Smarty write file plugin
 * 
 * @package Smarty
 * @subpackage PluginsInternal
 * @author Monte Ohrt 
 */

/**
 * Smarty Internal Write File Class
 */
class Smarty_Internal_Write_File {
    /**
     * Writes file in a save way to disk
     * 
     * @param string $_filepath complete filepath
     * @param string $_contents file content
     * @return boolean true
     */
    public static function writeFile($_filepath, $_contents, $smarty)
    {
        if (PLATFORM == 'sae') {
            if (!file_put_contents($_filepath, $_contents)) {
                throw new Exception("unable to write file {$filepath}");
                return false;
            }
        } else {
            $old_umask = umask(0);
            $_dirpath = dirname($_filepath); 
            // if subdirs, create dir structure
            if ($_dirpath !== '.' && !file_exists($_dirpath)) {
                mkdir($_dirpath, $smarty->_dir_perms, true);
            } 
            // write to tmp file, then move to overt file lock race condition
            $_tmp_file = tempnam($_dirpath, 'wrt');

    	    if (!($fd = @fopen($_tmp_file, 'wb'))) {
            	$_tmp_file = $_dirpath . DS . uniqid('wrt');
            	if (!($fd = @fopen($_tmp_file, 'wb'))) {
                throw new SmartyException("unable to write file {$_tmp_file}");
                return false;
            	}
       		 }

        	fwrite($fd, $_contents);
        	fclose($fd);

            // remove original file
            if (file_exists($_filepath))
                @unlink($_filepath); 
            // rename tmp file
            rename($_tmp_file, $_filepath); 
            // set file permissions
            chmod($_filepath, $smarty->_file_perms);
            umask($old_umask);
        }
        return true;
    } 
} 

?>